Haley SBR Thorntail mount, mounted off the top rail. The pressure switch is on the front portion of the CQC rail, where the sling socket is.
Here's a more recent shot.
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I had to drill out the gas regulator in order to get it to cycle 100% when suppressed. Otherwise too much gas was going back into the action. What I did was drill the adverse port out to .110" based on the measurements of an Austrian military guy on lightfighter, and now I use that as my regular setting. I know this sounds backwards from what we're used to with AR gas ports and suppressors, but this is the hole letting gas out of the action. So more of that excess gas is being vented out, as opposed to running the action too fast/hard. Which for me was causing some odd issues. With that gas regulator drilled out, I have had 0 malfunctions in the last two 3-gun matches here.




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